1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_ 6 #define CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_ 7 #pragma once 8 9 #include <string> 10 11 #include "base/task.h" 12 #include "chrome/browser/chromeos/network_state_notifier.h" 13 #include "content/browser/tab_contents/interstitial_page.h" 14 15 class DictionaryValue; 16 class Extension; 17 class TabContents; 18 19 namespace chromeos { 20 21 // OfflineLoadPage class shows the interstitial page that is shown 22 // when no network is available and hides when some network (either 23 // one of wifi, 3g or ethernet) becomes available. 24 // It deletes itself when the interstitial page is closed. 25 class OfflineLoadPage : public InterstitialPage { 26 public: 27 // A delegate class that is called when the interstitinal page 28 // is closed. 29 class Delegate { 30 public: Delegate()31 Delegate() {} ~Delegate()32 virtual ~Delegate() {} 33 // Called when a user selected to proceed or not to proceed 34 // with loading. 35 virtual void OnBlockingPageComplete(bool proceed) = 0; 36 37 private: 38 DISALLOW_COPY_AND_ASSIGN(Delegate); 39 }; 40 static void Show(int process_host_id, int render_view_id, 41 const GURL& url, Delegate* delegate); 42 // Import show here so that overloading works. 43 using InterstitialPage::Show; 44 45 protected: 46 // Create a offline load page for the |tab_contents|. 47 OfflineLoadPage(TabContents* tab_contents, const GURL& url, 48 Delegate* delegate); ~OfflineLoadPage()49 virtual ~OfflineLoadPage() {} 50 51 // Only for testing. EnableTest()52 void EnableTest() { 53 in_test_ = true; 54 } 55 56 private: 57 // InterstitialPage implementation. 58 virtual std::string GetHTMLContents(); 59 virtual void CommandReceived(const std::string& command); 60 virtual void Proceed(); 61 virtual void DontProceed(); 62 63 // Overrides InterstitialPage's Observe. 64 virtual void Observe(NotificationType type, 65 const NotificationSource& source, 66 const NotificationDetails& details); 67 68 // Retrieves template strings of the offline page for app and 69 // normal site. 70 void GetAppOfflineStrings(const Extension* app, 71 const string16& faield_url, 72 DictionaryValue* strings) const; 73 void GetNormalOfflineStrings(const string16& faield_url, 74 DictionaryValue* strings) const; 75 76 // True if there is a mobile network is available but 77 // has not been activated. 78 bool ShowActivationMessage(); 79 80 Delegate* delegate_; 81 NotificationRegistrar registrar_; 82 83 // True if the proceed is chosen. 84 bool proceeded_; 85 ScopedRunnableMethodFactory<OfflineLoadPage> method_factory_; 86 87 bool in_test_; 88 89 DISALLOW_COPY_AND_ASSIGN(OfflineLoadPage); 90 }; 91 92 } // namespace chromeos 93 94 #endif // CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_ 95